Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
PatentStorm News
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
US Patent 5562629 - Catheter placement system utilizing a handle, a sharp, and a releasable retainer mechanism providing retraction of the sharp upon disengagement of the catheter from the handle
US Patent Issued on October 8, 1996
Estimated Patent Expiration Date:
December 23, 2014Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
December 23, 2014Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA trocar and catheter assembly for automatically disarming the trocar after placement of the catheter into a patient's blood vessel includes a spring urging retraction of the trocar and a releasable retainer mechanism for maintaining the trocar in an extended position during insertion of the catheter into the blood vessel. The catheter is removably mounted to a handle which defines an internal passage. Disengaging the handle from the catheter after placement of the catheter into the blood vessel actuates the releasable retainer mechanism for allowing the trocar to be drawn into the handle passage under the influence of a spring, to enclose the sharpened end of the trocar after use. | InventorsApplicationNo. 363127 filed on 12/23/1994US Classes:604/158, Body entering conduit axially movable within body piercing conduit while former is disposed in the body604/195, Portion of body entering conduit stored in material receiving syringe reservoir604/198Cover or protector for body entering conduit movable axially relative to one anotherField of Search604/192, Having cover or protector for body entering conduit604/198, Cover or protector for body entering conduit movable axially relative to one another604/110, Having means for preventing reuse of device604/263, Removable cover or protector for body inserted conduit604/158, Body entering conduit axially movable within body piercing conduit while former is disposed in the body604/272, Body piercing condit (e.g., needle, etc.)604/273, Specific structure for preventing or minimizing inconvenience casued by breakage during insertion of conduit into body604/274, Specific structure for preventing coring of body tissue604/900TELLTALE SHOWING ENTRY OF BLOOD INTO BODY INSERTED CONDUITExaminersPrimary: Yasko, John D.Attorney, Agent or FirmUS Patent References2722215, 2841143, 3825003, 4009716, Needle-hub assembly for syringesIssued on: 03/01/1977 Inventor: Cohen4573976, Shielded needle Issued on: 03/04/1986 Inventor: Sampson , et al.4664259, Needle container and method for preventing accidental contact with a needle Issued on: 05/12/1987 Inventor: Landis4676783, Retractable safety needle Issued on: 06/30/1987 Inventor: Jagger , et al.4747831, Cannula insertion set with safety retracting needle Issued on: 05/31/1988 Inventor: Kulli4767413, Dental syringe having an automatically retractable needle Issued on: 08/30/1988 Inventor: Haber , et al.4772265, Safety catheter Issued on: 09/20/1988 Inventor: Walter4781692, Retractable safety needles Issued on: 11/01/1988 Inventor: Jagger , et al.4826484, Disease control syringe having a retractable needle Issued on: 05/02/1989 Inventor: Haber , et al.4838869, Retractable needle syringe Issued on: 06/13/1989 Inventor: Allard4874382, Safety syringe Issued on: 10/17/1989 Inventor: Lindemann, et al.4955870, Hypodermic syringe with retractable needle Issued on: 09/11/1990 Inventor: Ridderheim, et al.4978343, Trap in barrel one handed retractable safety syringe Issued on: 12/18/1990 Inventor: Dysarz, et al.4994034, Retractable needle hypodermic syringe system Issued on: 02/19/1991 Inventor: Botich, et al.4994042, Combined catheter and needle Issued on: 02/19/1991 Inventor: Vadher5000736, Disposable syringe with automatic needle retraction Issued on: 03/19/1991 Inventor: Kaufhold, Jr., et al.5108376, Retractable intravenous needle assembly Issued on: 04/28/1992 Inventor: Bonaldo5120319, Flash tube for intravenous catheter Issued on: 06/09/1992 Inventor: Van Heugten, et al.5135505, Protective catheter device Issued on: 08/04/1992 Inventor: Kaufman5207647, Needle device Issued on: 05/04/1993 Inventor: Phelps5215528, Catheter introducer assembly including needle tip shield Issued on: 06/01/1993 Inventor: Purdy, et al.5215529, Medical connector Issued on: 06/01/1993 Inventor: Fields, et al.5242414, Ergonomic vascular access needle Issued on: 09/07/1993 Inventor: Fischell, et al.5273540Nonreusable needle and catheter assembly Issued on: 12/28/1993 Inventor: Luther, et al. International ClassA61M 005/178 |
